Electrolyte transport across isolated large intestinal mucosa.

Investigation regarding the epithelial electrolyte and nutrient transport across the intestinal mucosa in the horse Thesis

Ion transport across intestinal mucosa of winter flounder, Pseudopleuronectes americanus.

HUANG, K. C., AND THERESA S. T. CHEN. Ion transport acro.ss intestinal mucosa of winterjlounder, Pseudopleuronectes americanus. Am. J, Physiol. 220(6): 1734-1738. 197 1 .-Isolated winter flounder small intestine mounted in an Ussing chamber and bathed on both sides with teleost fish Ringer solution showed a PD ranging from 1 to 5 mv, with the serosa being electronegative to the mucosa. When the...

Study of ion transport across biopsies of ileostomy in vitro: search for evidence of intestinal 'adaptation' after colectomy.

To explore the possibility that small intestinal 'adaptation' may occur after colectomy we examined the ability of ileal mucosal biopsies, taken from patients with ileostomies, to transport electrolytes in vitro. Ileostomy mucosal electrical potential difference was higher (5.4+/-0.5 mV) than in normal mucosa (3.3+/-0.3, P less than 0.001), resistance was higher (98+/-12, against 40.3+/-2.8 ome...

Absorption of intact beta-casomorphins (beta-CM) in rabbit ileum in vitro.

The functional significance of the presence of opioid peptides in enzymatic digestion of bovine milk beta-casein remains unclear. Opiates modify intestinal electrolyte transport by acting on receptors located on the serosal side of the intestine. The aim of the present study is to determine under which conditions beta-casomorphins could act from the luminal side of the intestine. The effect of ...

In vitro transport of beta-lactoglobulin across the jejunum of lactose-fed rats.

Changes in protein absorption through the intestinal mucosa occur with aging and might reflect modifications in enterocyte membrane characteristics. We have observed that bovine beta-lactoglobulin (beta-LG) was efficiently transported across the small intestine of adult rats in vitro and that 12-16% of the absorbed protein was recovered intact or as large hydrophobic peptides. Ten percent lacto...